Veritas-bu

Re: [Veritas-bu] VTL Replication between 2 sites

2009-03-27 18:07:28
Subject: Re: [Veritas-bu] VTL Replication between 2 sites
From: Bill Roth <william.c.roth AT gmail DOT com>
To: "Clooney, David" <david.clooney AT bankofamerica DOT com>
Date: Fri, 27 Mar 2009 15:04:14 -0700
David,
 
For compatibility with a specific product check the NetBackup OpenStorage HCL at: ftp://exftpp.symantec.com/pub/support/products/NetBackup_Enterprise_Server/284599.pdf
 
> "From an NBU point of view how does this plug in, i.e. does NBU hook into a specific VTL api for instance."
 
A vendor specific plug-in gets installed on each NetBackup media server that needs to communicate with the OST Storage Server.
FalconStor, Quantum, PDDO, and Data Domain each have their own vendor specific plug-ins.
The "NetBackup Shared Storage Guide" has a section dedicated to OpenStorage that goes into a nice amount of detail.
 
The only contact I have at FalconStor is Peter Eicher whom can likely point you in the right direction (peter.eicher AT falconstor DOT com).
For disclosure purposes I'm a Data Domain guy (and beyond that I'm not interested in polluting this forum with marketing or sales content).
 
Thanks, Bill
 

On Fri, Mar 27, 2009 at 12:54 PM, Clooney, David <david.clooney AT bankofamerica DOT com> wrote:

Very interesting Bill

 

We currently utilise a SUN VTL (falconstor ported to SUN) and have read a while back that falconstor had signed up to open storage.

 

From an NBU point of view how does this plug in, i.e. does NBU hook into a specific VTL api for instance.

 

Its all a bit vague to be honest, any additional info would be appreciated,

 

Regards

 

 

David Clooney

Enterprise Storage Services

 

 

From: Bill Roth [mailto:william.c.roth AT gmail DOT com]
Sent: 27 March 2009 18:11
To: smpt1 AT peppas DOT gr
Cc: Clooney, David; VERITAS-BU AT mailman.eng.auburn DOT edu


Subject: Re: [Veritas-bu] VTL Replication between 2 sites

 

I'm in agreement with "smpt1":

 

OST / OpenStorage is likely the best way to address the VTL replication challenge.

 

Quantum, FalconStor, PDDO, and Data Domain all support OpenStorage.

 

The low bandwidth replication is facilitated by means of deduplication and is properly referred to as optimized duplication from the perspective of NetBackup.

Replication traffic flows between OST Storage Servers and not through any NetBackup media servers.

 

NetBackup schedules, controls, monitors, and catalogs the duplicate backup images created via optimized duplication.

You can set different retention periods for each copy.

You can set a given copy to primary using the NetBackup catalog utility in order to recover from it.

You can use NetBackup's reporting mechanism's to track the whole thing.


NetBackup 6.5.4 supports hierarchical (cascaded) duplication, where (for instance) a third copy can be sourced from a specific copy number.

This scenario allows you to backup to disk at site "A", opt-dupe to site "B", and then create a physical tape based copy at site "B" using the disk based copy at site "B".

 

Lots of flexibility, lots or options, all controlled and cataloged by NetBackup.

 

- Bill

 

On Fri, Mar 27, 2009 at 4:52 AM, smpt <smpt1 AT peppas DOT gr> wrote:

Check the Quantum DXi7500. It uses OST and can replicate to another DXi the
data and netbackup is aware of it

-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Clooney,
David
Sent: Friday, March 27, 2009 12:06 PM
To: VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] VTL Replication between 2 sites

You would first have to make siteA volumes non-rbotic and then inventory
site B.

NBU will assume a tape has been pulled from 1 library and reinserted
into another. Its key to make siteA volumes non-robotic however before
inventory'ing site B.

The replication i.e. same volume will be down to your VTL replication
mechanism


Regards


David Clooney
Enterprise Storage Services

Internal X66059
External +44 20 8760 6059

david.clooney AT bankofamerica DOT com



-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of dy018
Sent: 27 March 2009 10:00
To: VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] VTL Replication between 2 sites


Hi,

Yes, if both siteA and siteB is under one backup domain, inventory of
siteB library will update siteA media catalog. However, the replication
of virtual tape from siteA to siteB, will the mediaID be the same? Does
NBU allow the same tape media exist in different tape libraries?

Another question with regards to this setup. If i were to restore data
in siteA and siteA VTL is down, what is the best way to restore data
that sit at siteB?



Cloonster wrote:
> We were looking to setup the same environment, we are starting to look
> at merging 3 NBU domains into 1. And will therefore be able to
inventory
> a library at site B. as one domain NBU would know about these volumes.
> No need for importing etc merely lose sight A, inventory site B.
>
> Regards
>
> David Clooney
> Enterprise Storage Services
>
> Internal X66059
> External +44 20 8760 6059
> david.clooney < at > bankofamerica.com
>
>
> -----Original Message-----
> From: veritas-bu-bounces < at > mailman.eng.auburn.edu
> [mailto:veritas-bu-bounces < at > mailman.eng.auburn.edu] On Behalf Of
dy018
> Sent: 27 March 2009 07:13
> To: VERITAS-BU < at > mailman.eng.auburn.edu
> Subject: [Veritas-bu] VTL Replication between 2 sites
>
>
> Hi,
>
> Anyone has the following setup in their environment?
>
> I read about some VTL from EMC, IBM, HP, etc having storage products
> such VTL that ables to do low-bandwidth replication using LAN or WAN.
>
> If incoperate this with NBU, imagine i have a master server on siteA
and
> control a media server at siteB. I have 2 x VTLs, 1 in site A (robot
> control by master) and 1 in siteB (robot control at media server).
>
> Backups going from siteA to VTL will be replicated over to siteB VTL.
> I've check that this replication is done by the VTL and so NBU will
not
> be aware of the replication. In the event of restoration of siteA data
> into siteB servers, what will be the restore process?
>
> My guess will be needing to import all the data replicated over to
siteB
> first before doing restore? Anyone can verify?
>
> Regards
>
>
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distribution or any action taken or omitted to be taken in reliance on it,
is prohibited and may be unlawful.

When addressed to external clients any opinions or advice contained in this
internet e-mail are subject to the terms and conditions expressed in any
applicable governing terms of business or client engagement letter issued by
the pertinent Bank of America group entity.

If this email originates from the U.K. please note that Bank of America,
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For all U.K. corporate disclosures, please refer to
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